<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域 -->
    <el-card>
      <!-- 搜索与添加区域 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="yhList.query" clearable @clear="getUsers">
            <el-button slot="append" icon="el-icon-search" @click="getUsers"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="dialogVisible=true">添加用户</el-button>
        </el-col>
      </el-row>
      <!-- 用户列表区 -->
      <el-table :data="usersList" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <!-- 作用域插槽 -->
          <!-- slot-scope属性是作用域插槽的属性 -->
          <template slot-scope="scope">
            <!-- scope.row能拿到全部数据 -->
            <el-switch v-model="scope.row.mg_state" @change="djZt(scope.row)"></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-button type="primary" icon="el-icon-edit" size="mini" @click="xgYhu(scope.row.id)"></el-button>
            <!-- 删除按钮 -->
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="scUser(scope.row.id)"
            ></el-button>
            <!-- 分配角色 -->
            <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
                @click="setRole(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区 -->
      <!-- @size-change:当我们去点选每页数据有几条下拉框的时候触发 -->
      <!-- @current-change:当我们去点击页码的时候触发 -->
      <!-- :current-page设置当前页码 -->
      <!-- :page-size设置当前每页显示多少条数据 -->
      <!-- layout用来设置分页器里的布局结构 -->
      <!-- :total用来设置总数量 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="yhList.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="yhList.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      ></el-pagination>
    </el-card>
    <!-- 添加用户的弹窗 -->
    <el-dialog title="添加用户" :visible.sync="dialogVisible" width="50%" @close="gbQkong">
      <!-- 内容主体区 -->
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="dialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 修改用户的对话框 -->
    <el-dialog title="修改用户" :visible.sync="xgDialogVisible" width="50%" @close="xgGbi">
      <el-form :model="xgForm" :rules="xgRules" ref="xgFormRef" label-width="70px">
        <el-form-item label="用户名">
          <el-input v-model="xgForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="xgForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="xgForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="xgDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="xgUser">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 分配角色的对话框 -->
    <el-dialog title="分配角色" :visible.sync="setRoleDialogVisible" width="50%" @close="gbDuihua">
      <div>
        <p>当前的用户: {{userinfo.username}}</p>
        <p>当前的角色: {{userinfo.role_name}}</p>
        <p>
          分配新角色:
          <el-select v-model="selectId" placeholder="请选择">
            <el-option
              v-for="item in roleslist"
              :key="item.id"
              :label="item.roleName"
              :value="item.id"
            ></el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRole">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>
<script>
export default {
  data() {
    var checkEmail = (rule, value, cb) => {
      // 验证邮箱规则
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
      if (regEmail.test(value)) {
        return cb()
      }
      cb(new Error('请输入合法邮箱'))
    }
    var checkMobile = (rule, value, cb) => {
      const regMobile = /^(0|86|17951)?(13[0-9]|15[0123456789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
      if (regMobile.test(value)) {
        return cb()
      }
      cb(new Error('请输入合法手机号'))
    }
    return {
      // 获取用户列表参数对象
      yhList: {
        query: '',
        // 当前页数
        pagenum: 1,
        // 当前每页显示多少条数据
        pagesize: 2
      },
      usersList: [],
      total: 0,
      // 控制添加用户对话框的显示与隐藏
      dialogVisible: false,
      // 修改用户对话框的显示与隐藏
      xgDialogVisible: false,
      // 查询到的用户信息对象
      xgForm: {},
      // 修改表单的验证规则
      xgRules: {
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      // 添加用户的表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 添加表单的验证规则
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          {
            min: 3,
            max: 10,
            message: '用户名长度在3-10个字符之间',
            trigger: 'blur'
          }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          {
            min: 6,
            max: 10,
            message: '用户名长度在6-10个字符之间',
            trigger: 'blur'
          }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      // 控制角色分配对话框的显示与隐藏
      setRoleDialogVisible: false,
      // 需要被分配角色的用户信息
      userinfo: {},
      // 所有角色的数据列表
      roleslist: [],
      // 已选中的角色ID值
      selectId: ''
    }
  },
  created() {
    this.getUsers()
  },
  methods: {
    async getUsers() {
      const { data: res } = await this.$http.get('users', {
        params: this.yhList
      })
      if (res.meta.status !== 200) {
        return this.$message.error('获取失败')
      }
      this.usersList = res.data.users
      this.total = res.data.total
      console.log(res)
    },
    // 监听pagesize改变的事件
    handleSizeChange(newSize) {
      console.log(newSize)
      // 更改yhList中的pagesize,并重新发送请求
      this.yhList.pagesize = newSize
      this.getUsers()
    },
    // 监听页码值改变的事件
    handleCurrentChange(newPage) {
      console.log(newPage)
      // 更改yhList中的pagenum,并重新发送请求
      this.yhList.pagenum = newPage
      this.getUsers()
    },
    // 监听开关状态
    async djZt(userinfo) {
      console.log(userinfo)
      const { data: res } = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
      )
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('更新失败')
      }
      this.$message.success('更新成功')
    },
    // 监听用户添加页面的关闭事件
    gbQkong() {
      this.$refs.addFormRef.resetFields()
    },
    // 发送请求完成添加用户
    addUser() {
      this.$refs.addFormRef.validate(async v => {
        console.log(v)
        if (!v) return
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) {
          this.$message.error('添加用户失败')
        }
        this.$message.success('添加用户成功')
        this.dialogVisible = false
        this.getUsers()
      })
    },
    // 展示编辑用户对话框
    async xgYhu(id) {
      const { data: res } = await this.$http.get('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('获取失败')
      }
      this.xgForm = res.data
      this.xgDialogVisible = true
    },
    // 监听修改用户对话框的关闭事件
    xgGbi() {
      this.$refs.xgFormRef.resetFields()
    },
    // 修改用户信息并提交
    xgUser() {
      this.$refs.xgFormRef.validate(async v => {
        if (!v) return
        // 发起修改用户请求
        const { data: res } = await this.$http.put('/users/' + this.xgForm.id, {
          email: this.xgForm.email,
          mobile: this.xgForm.mobile
        })
        console.log(res.meta.status)
        if (res.meta.status !== 200) {
          return this.$message.error('修改失败')
        }
        this.$message.success('修改成功')
        this.getUsers()
        this.xgDialogVisible = false
      })
    },
    // 删除用户
    async scUser(id) {
      // 弹框询问用户是否删除
      const result = await this.$confirm(
        '此操作将永久删除该用户, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }
      ).catch(err => err)
      // 如果用户确认删除,则返回值为字符串 confirm
      // 如果用户取消删除,则返回值为字符串 cancel
      if (result !== 'confirm') {
        return this.$message.info('已取消删除')
      }
      console.log('确认了删除')
      const { data: res } = await this.$http.delete('/users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('删除用户失败')
      }
      this.$message.success('删除用户成功')
      this.getUsers()
    },
    // 展示分配角色的对话框
    async setRole(userinfo) {
      this.userinfo = userinfo
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.error('获取角色列表失败')
      }
      this.roleslist = res.data
      this.setRoleDialogVisible = true
    },
    // 点击按钮,分配角色
    async saveRole() {
      if (!this.selectId) {
        return this.$message.error('请选择要分配的角色')
      }
      const { data: res } = await this.$http.put(`users/${this.userinfo.id}/role`, { rid: this.selectId })
      if (res.meta.status !== 200) {
        return this.$message.error('更新角色失败')
      }
      this.$message.success('更新角色成功')
      this.getUsers()
      this.setRoleDialogVisible = false
    },
    // 监听分配角色对话框的关闭事件
    gbDuihua() {
      this.selectId = ''
      this.userinfo = {}
    }
  }
}
</script>
<style scoped lang="less">
</style>
